import { login, getInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import global from '@/utils/common'
import router, { resetRouter } from '@/router'

const state = {
  token: getToken(),
  currentUserId: '',
  name: '',
  icon: '',
  avatar: '',
  introduction: '',
  roles: [],
  firstLoginStatus: -1,
  headImg: ''
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_CURRENTUSERID: (state, currentUserId) => {
    state.currentUserId = currentUserId
  },
  SET_FILEDOMAIN: (state, fileDomain) => {
    state.fileDomain = fileDomain
  },
  SET_FILEBUCKET: (state, fileBucket) => {
    state.fileBucket = fileBucket
  },
  SET_HEADIMG: (state, headImg) => {
    state.headImg = headImg
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
  SET_MENU_OPERATE: (state, operateMap) => {
    state.addoperateMap = operateMap
    state.operateMap = operateMap
  },
  SET_FIRST_LOGIN_STATUS: (state, firstLoginStatus) => {
    state.firstLoginStatus = firstLoginStatus
  }
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      login({ username: username.trim(), password: password, appKey: window.EnvConfig.VUE_APP_KEY }).then(response => {
        const data = response.data.token
        commit("SET_FIRST_LOGIN_STATUS", response.data.firstLoginStatus)

        commit('SET_TOKEN', data)
        setToken(data)
        global.token = data

        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      getInfo(state.token).then(response => {
        response.data["roles"] = ['admin'] // 不使用框架中提供的前端权限控制,用户权限由后端控制
        const { data } = response

        if (!data) {
          reject('Verification failed, please Login again.')
        }

        const { currentUserId, roles, name, avatar, introduction, fileDomain, fileBucket, headImg } = data

        // roles must be a non-empty array
        if (!roles || roles.length <= 0) {
          reject('getInfo: roles must be a non-null array!')
        }
        commit('SET_CURRENTUSERID', currentUserId)
        commit('SET_ROLES', roles)
        commit('SET_NAME', name)
        commit('SET_FILEDOMAIN', fileDomain)
        commit('SET_FILEBUCKET', fileBucket)
        commit('SET_HEADIMG', headImg)
        commit('SET_AVATAR', avatar)
        commit('SET_INTRODUCTION', introduction)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      removeToken()
      commit('SET_TOKEN', '')
      commit('SET_CURRENTUSERID', '')
      commit('SET_MENU_OPERATE', [])
      commit('SET_NAME', '')
      commit('SET_FILEDOMAIN', '')
      commit('SET_FILEBUCKET', '')
      commit('SET_HEADIMG', '')
      commit('SET_ROLES', [])
      commit('SET_AVATAR', '')
      commit('SET_INTRODUCTION', '')
      commit('SET_FIRST_LOGIN_STATUS', -1)
      resetRouter()

      // reset visited views and cached views
      // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
      dispatch('tagsView/delAllViews', null, { root: true })

      resolve()
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      commit('SET_MENU_OPERATE', [])
      commit('SET_NAME', '')
      commit('SET_FILEDOMAIN', '')
      commit('SET_FILEBUCKET', '')
      commit('SET_HEADIMG', '')
      commit('SET_AVATAR', '')
      commit('SET_INTRODUCTION', '')
      commit('SET_FIRST_LOGIN_STATUS', -1)
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  async changeRoles({ commit, dispatch }, role) {
    const token = role + '-token'

    commit('SET_TOKEN', token)
    setToken(token)

    const { roles } = await dispatch('getInfo')

    resetRouter()

    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })
    // dynamically add accessible routes
    router.addRoutes(accessRoutes)

    // reset visited views and cached views
    dispatch('tagsView/delAllViews', null, { root: true })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
